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Single Choice Easy

Q Where is the center of the micturition reflex located?

ID: #9975 Urinary system 131 views
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#9975Q ID
EasyDifficulty
Urinary systemTopic
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  • A Medulla ✔ ✖
  • B Sacral cord ✔ ✖
  • C Hypothalamus ✔ ✖
  • D Lumbar cord ✔ ✖
Correct Answer

Explanation

The micturition reflex is the process of bladder emptying. The sacral cord is where the reflex arc for micturition is located. The afferent signals from stretch receptors in the bladder travel to the sacral cord through the pelvic nerves. Then the sacral cord initiates efferent signals via parasympathetic nerves to the detrusor muscle to contract and via somatic nerves to the external urethral sphincter to relax. These signals facilitate the process of urine expulsion. Therefore, the correct option is B.

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